Vacuum tube

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Bell Industrial Technology Company is located in Rihui Industrial Park, the Economic and Technological Development Zone of Xinyu City, Jiangxi Province. It was established by transforming the former Jiangxi Rihui Boiler and Pressure Vessel Factory. From its inception, the company has been dedicated to the development and production of low-temperature vacuum pipeline systems, sound insulation and noise reduction equipment, systems for transporting materials such as coal powder, fly ash, and limestone, as well as equipment for filtering and mixing materials like water, air, and chemical raw materials. It also manufactures gas treatment equipment such as drainers and dry gas desulfurization towers, flame arrestors, and separation/dehydration devices. The company operates an industrial park covering 23,000 square meters, including 6,000 square meters of standard factory buildings and over 5,000 square meters of office space. It is equipped with comprehensive production and testing facilities, and has highly skilled technical personnel. By integrating production, business operations, research and development, and training, the company ensures that it can provide its customers with the best possible equipment and services. Introduction to vacuum pipes: Due to the temperature difference of about 280°C between ultra-cold liquids and the temperature of the surrounding environment, it is crucial to maintain the low temperature of the liquid inside the pipes when transporting such liquids. There are generally three main ways by which heat can be transferred from the external environment to the liquid inside the pipes: direct heat conduction, convective heat transfer, and thermal radiation. Even if insulation layers are used around the pipes as a common method of insulation, these pathways of heat transfer cannot be completely eliminated, resulting in significant heat loss during the transportation of cold liquids and thus excessive energy waste. When vacuum pipes are used for transporting cold liquids, the high vacuum level between the inner and outer tubes prevents these forms of heat transfer, reducing heat loss from the liquid and avoiding substantial energy waste for the enterprise. The vacuum pipes of Bell Company use high-quality seamless stainless steel pipes for both the inner and outer layers, ensuring sufficient strength even in low-temperature environments. The radiation-shielding material used for wrapping the inner tube is imported aluminum foil and insulating paper; the interlayer employs state-of-the-art high-vacuum multi-layer insulation. An imported helium mass spectrometer is used to detect leaks in the interlayer space, and a special vacuum sealing process is applied to achieve a vacuum level of over 4×10-4 Pa. This ensures that heat loss is kept to a minimum, fully meeting the technical requirements for the long-distance transport of cryogenic liquids.